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You are watching: How many amps does a 3 ton air conditioner use

Is over there a formula because that determining amperage for A/C condensing devices if the only info you know is the tonnage? like...1-ton equals 12,000 BTU"s = 10 amps2-ton equates to 24,000 BTU"s = 20 amps3-ton equals 36,000 BTU"s = 30 ampsThis is the way I figure it once the nameplate rating is unknown.
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Is over there a formula because that determining amperage for A/C condensing units if the only details you recognize is the tonnage? like...1-ton equates to 12,000 BTU"s = 10 amps2-ton amounts to 24,000 BTU"s = 20 amps3-ton equals 36,000 BTU"s = 30 ampsThis is the way I number it once the nameplate rating is unknown.
There"s no direct relationship the is all the accurate.Tonnage is a measure up of output. Amperage is a measurement of input. FWIW, my conversion calculator has 1 BTU/hour = 0.2928104185 watts. Of course, that way the unit has to run 60 minutes because that it to be accurate.The deliver of one measurement come the other, while going upwards hand-in-hand, isn"t that accurate. Performance of the unit, age, maintenance, etc. All play a part.Think that converting vehicle horsepower to MPG.

1 horsepower per ton has been a pretty decent dominion of thumb for years for air-cooled condensing systems (condenser pan included). Smaller units a little more. Bigger units, a tiny less. Similar to everything else, try to acquire actual dataplate info (or at least a version number, reduced sheet, or submittal) so girlfriend can obtain the real information.
One reason not to provide DIY advice:Catch a male a fish and also you have the right to sell it to him.Teach a male to fish and you�ve ruined a great business opportunity.
A ton is no 12,000 BTU. That is 12,000 BTU/h, so it is a unit of power equivalent to around 3517 W. So, in ~ 100% efficiency, a 1-ton, 120 V unit would draw about 29 A.If you know the efficiency of the unit, friend can gain a unstable estimate of current draw.

A ton is not 12,000 BTU. It is 12,000 BTU/h, so that is a unit of power tantamount to about 3517 W. So, at 100% efficiency, a 1-ton, 120 V unit would certainly draw about 29 A.If you know the effectiveness of the unit, friend can obtain a stormy estimate of existing draw.
Uh.... No really. The compressor does not directly adjust electrical power to cooling tons. It moves warmth from one place to another. The malfunction is much more realistically 1200 watts per ton as soon as you consider the result of the refrigerant, which is whereby the 1 horsepower every ton preeminence of ignorance comes from. Think around it.... If you to be right, (and you aren"t), take into consideration the dimension of the circuit that would be required for a 10 or 12 thousand BTU window type air conditioner.
One reason not to provide DIY advice:Catch a male a fish and also you have the right to sell it to him.Teach a man to fish and also you�ve ruined a an excellent business opportunity.
I guess we space assuming 240 volt solitary phase equipment?Seems us would require a KW every ton variable for it to be beneficial for any type of voltage or phase.
I assumption: v we room assuming 240 volt single phase equipment?Seems we would require a KW per ton element for it to be valuable for any kind of voltage or phase.
One reason not to offer DIY advice:Catch a man a fish and you deserve to sell it to him.Teach a male to fish and you�ve ruined a great business opportunity.
I"m just having this discussion since often times I"ve to be told "we"ve acquired a 4-ton unit needs to it is in wired up" and that"s all info I get until I get there.
I"m just having actually this discussion due to the fact that often times I"ve to be told "we"ve obtained a 4-ton unit requirements to it is in wired up" and also that"s all info I get until I gain there.
You"re pretty for sure to rough-in cable sized to Table 430.248 because that a 4 speech motor. You"ll have to wait because that a dataplate to pick a breaker, however 99 times the end of 100, the engine amp attract chart will work-related if friend go through one horsepower every ton. I just did a 3-ton last week, and the NEC says 18.7 for a 3 horsepower motor. The yes, really dataplate was 18.8. Quite darned close.
One factor not to offer DIY advice:Catch a man a fish and you have the right to sell it come him.Teach a male to fish and you�ve ruined a great business opportunity.
You"re pretty for sure to rough-in wire sized to Table 430.248 because that a 4 horsepower motor. You"ll need to wait for a dataplate to select a breaker, but 99 times out of 100, the engine amp draw chart will job-related if girlfriend go v one horsepower per ton. I just did a 3-ton last week, and also the NEC says 18.7 because that a 3 horsepower motor. The really dataplate was 18.8. Nice darned close.
Uh.... No really. The compressor does no directly readjust electrical power to cooling tons. The moves warm from one ar to another. The failure is more realistically 1200 watt per ton when you think about the result of the refrigerant, which is wherein the 1 horsepower per ton rule of thumb comes from. Think around it.... If you to be right, (and friend aren"t), take into consideration the size of the circuit that would certainly be compelled for a 10 or 12 thousand BTU window kind air conditioner.
Yeah, certain right. Ns wasn"t thinking thermodynamically, or soberly. But can a brutha get a pass? i had four Bacardi and Cokes in ~ the steak house.
Yeah, certain right. Ns wasn"t thinking thermodynamically, or soberly. However can a brutha gain a pass? i had four Bacardi and also Cokes in ~ the steak house.
You bet. Word on the street is that Coke is sometimes unfit to drink there is no requisite quantities of Bicardi or Captain.
One factor not to provide DIY advice:Catch a man a fish and also you can sell it come him.Teach a man to fish and also you�ve damaged a good business opportunity.

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